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Mu’adah, Heksa
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Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology Public Health

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Drying's Impact on Antioxidant Compound Levels in Curcuma heyneana Valeton & Zijp. (Temu Giring) Yumita, Agustin; Hikmawanti, Ni Putu Ermi; Mu’adah, Heksa; Hanani, Endang
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.631-637

Abstract

One plant in the genus Curcuma that exhibits potential as a natural antioxidant is Curcuma heyneana Valeton & Zijp., commonly known as temu giring. This species contains phenolic and flavonoid compounds. The objective of this research was to quantify the phenolic and flavonoid content, as well as assess the antioxidant activity of fresh and dried rhizomes. The extraction methods employed were infusion and decoction. Phenolic content was measured using the colorimetric method with the Folin-Ciocalteu reagent, while flavonoid content was determined using the AlCl3 reagent. Antioxidant activity was evaluated using the FRAP method. The highest phenolic content was observed in the oven-dried decoction extract (EDOD) at 6.258 mg GAE/g, and the highest total flavonoid content was also found in this EDOD at 2.899 mg QE/g. The most potent antioxidant activity among the test samples was exhibited by this EDOD, with a value of 12.064 mol FeEAC/g. The results indicate that higher drying temperatures correlate with increased phenolic and flavonoid levels in the temu giring rhizome, consequently influencing the antioxidant activity in the sample.
Co-Authors Endang Hanani Ni Putu Ermi Hikmawanti Yumita, Agustin